... ; Speed-dryChemical Formula: Na2SO4Specification chart:ITEMSTANDARDsodium sulphate %(Na2SO4) 99.5 MIN. 99.0 MIN. 99.0 MIN. water insolubles %0.01 MAX. 0.05 ... requiredPacking: 50KGs PP bag/1000KGs PP bag.Used as materials for synthetic detergent, glass, papermaking, inorganic salts, dyestuff, alcohol fibre, tanning ...